Railway-frog.



UNITED STATES PAT N OFFICE CHARLES A. nnDEnorsr a roN, EN SY VA IAQAsSIGNOR ro E PENNSYLVANIA fiTEEL COMPANY, for PHILADELPHIA, IBENNSYL- 'VANLAHA CORPORATION OFPENNSYLVANIA.

RAILWAYPFRQG.

Specification of Letters I atent.

Patented J an. 8, 1 907.

\ Application filed February 3, 1906. E Serial 110,299,276.

To all it, may, concern.- '-Be-it known that I, C nR Es A. ALPEN, a citizen of the United,StatesJesidingat fiteelto f hQW Y bf'lauphinadse Q Pennsylvania, have invented pertain new and .usefii'l Improvements Bail'way rogs, of which the following is afull, elear, and'eX, act description, reference beingfhad to the accompanying drawings ,"ofwhich Figure 1 isa plan viewofafrailway frogpr c o s s in which my l el t q SembQdiQ the ,weark ilate being .show nfin place as in use but, "of better illustrationythe same is shown before the spelter iiietal'r hasbeen the wearplate maybe'readily'secured'to and detached from said base v'vithout disturbihg the paving of the "street ,iti'shall be secured thereto without liability to fiiidfi j r 01" any of the parts or plate when in use.

i T he pr raqt r 0f thei ve tie wi l clearly appear froifil .the -fbllewing,description, in connectionwith 'the'drawings, which eases bi, thereaillustrate a railwayfrog iirjwhieli invention is embodied.

1 is the base, and, 2 the hard-metal wearplate. These two parts are substantially similar to the corresponding parts of wellknown frogs or crossings; bf this class, except in certain details required by this invention. The top of the base 1 is formed with a depression 3, preferably of the form in crosssection shown in Fig. 4that is, with amid way longitudinally-extending groove 4 and the bottom of the wearplate, which is of a sha e to fit said depression, being provided wit a downwardly-extending rib 5, entered into said groove 4, as shown. This rib, in addition to preventing displacement of the wear-plate, serves to prevent any vertical "turnediends 12 of the legs cured rigidly in p'laceto the buckling of the plate due to the tendency to retqhiq its upper fae under t efs m i shew: tr fli er e The base is provided with oblique recesses ,6,' four in thi's instance, bcqijpyhig the corners ota; rectangle asseen i V .ws e eiaepe i t their upp rend a the or 1g; 1. These reef the base 1, andj their inner portions open lntothef side's of the depression 3, as seen in Eigs. l and'2 so that access to said recesses may be had from the depression 3' when the wear-plateis not in place said depression, ior a urpose 1 hereinafter set forth .The wearp ate 2 is provided with laterally-extending inclinedflugs 7, that extend into the recess s :6 Substantially 'at righti angles to the inclination thereof, which this instance is anahgle' oi'fortyfiive degrees to the level of the to of the base." "E'a'chof these lugs 7 is pr vi' iw th hol S' h l 'I HghJh 'Q s amass-es. ab m- 1 The recesses 6, somewhat below lugs 7, are sch Pr vi e it l n upp wall; d n saidfrecesses-into ii per and lower portions, marked 6 an 6*, respectively. In

this instance jsaid wall is formed; from the crown 10 of an inverted-U-shapedpiec 11 of tough metal that is capable of withstanding severe tensile strain, the lower outwardly- ,of which toughmetal piece are firmly em edded. deep in'the "body' of the casting, for a purpose hereinafter explained. The lower. ends, re'spectivelyfof bolts 9 are screwed into nuts13 the. lower portion 6 of recesses 6 that is, belowthewall 10'a nd thereby said nuts are tightly drawn u wardly against the under surface of said wa l, the bolt-heads 9 holding the -lugs 'Zin place Within the recesses 6, and thereby the wearlate'is sease. The heads of bolts9 areusually provided with a 'squared'soc ket 9 for the insertion of the key through the top of recesses 6 to unscrew or tighten the bolt 9 and so release or secure the wear-plate in place, as described.

In assembling the parts the proceeding is quite simple, being as follows: Prior to inserting the wear-plate in the depression 3 the nuts 13 are from the depression 3 placed in the lower portion 6* of the recesses 6 below the walls '10. The wear-plate is then seated in the depression 3, With the lugs 7 thereof extending into the portion 6 of the recesses 6 above the walls 10. The bolts 9 are then passed through holes 8 in the lugs 7, thence through registering holes 14, through walls 10, and their lower ends screwed into the nuts 13, thereby drawing said nuts upwardly against the under surfaces of said walls and so securing the wear-plate firmly in place to the base.

The purpose of making the wall 10 as the crown of the inverted-U-shaped piece 11 of tough metal instead of having it a part of the casting of the base 1 is so that said wall, upon which a heavy strain comes, shall be of strong material, and also by embedding the lower ends of the legs of the piece 11 deep down in the casting of the base the strain on said piece is transferred to the base at points where the casting is of great thickness and strength. The pieces 11, of tough metal,

would usually in practice be cast into place ]in the base 1 in the process of molding said ase.

The wear-plate is usually made slightly smaller than the depression 3 so as to leave a space surrounding said wear-plate when in place for the insertion of spelter metal, such spelter metal being shown at 15, Fig. 4:, and in practice would also fill the portion of recesses 6 above the heads of bolts 9. The purpose of the spelter metal, as is well-known in this class of frogs or crossings, is to take up any irregularitiesin either the under side of the wear-plate or the upper surface of the depression 3 of the base-casting 1, so that the street-surface of the wear-plate may be al- Ways at the proper level; also, the spelter metal serves as a temporary filling for the portion of said recesses 6 above the boltheads 9, which may be chi ped out when it is desired to unscrew said bo ts to remove the wear-plate. I further remark that in addition to being readily renewable without disdepression therein, and the recesses open at their upper ends and whose inner sides coinmunicate with said depression, the walls in said base dividing said recesses into upper and lower portions, the wear-plate seated in said depression, and having the lugs extending into said upper portions of said recesses respectively, together with the nuts in the lower portions respectively, of said recesses, and the bolts passing through said lugs and said walls, and engaging said nuts, substantially as set forth.

2. The combination of the base, having the depression therein, and the recesses open at their upper ends and whose inner sides communicate with said depression, said recesses extending into said base at substantially an angle of forty-five degrees to the level thereof, the walls in said base dividing said recesses into upper and lower portions, the wear-plate seated in said depression and having the lugs extending therefrom at substantially an angle of forty-five degrees into the upper portions of said recesses, respec tively, together with the nuts in the lower portions respectively of said recesses, and. the bolts passing through said lugs at right angles thereto, and through said walls, and engaging said nuts, substantially as set forth.

3. The combination of the base having the depression therein, and the recesses open at their upper ends and whose inner sides coinmunicate with said depression, the hard metal pieces within said recesses and having upper portions constituting transverse walls across said recesses, dividing the same into upper and lower portions, said hard-metal pieces having portions extending downwardly from said wall portions and embedded deep in the casting of the base, the wear plate seated in said depression, and having the lugs extending therefrom into said upper portions of said recesses respectively, together with the nuts in the lower portions respectively of said recesses, and the bolts passing through said lugs and said wall portions of said hard-metal pieces, and engaging said nuts, substantially as set forth.

In testimony whereof I have hereunto affixed my signature.

CHARLES A. ALDEN. Witnesses WM. R. MILLER, B. S. WEAVER. 

